Re: How to prune a philadelphus
Kathy N
Hi, Linda,
You can hard prune Philadelphus. Do it in late winter or early spring. If it is really bad, you can cut back all stems low, otherwise, remove up to 1/3 of old branches. You will sacrifice flowering by doing this, but the plant will be happier and put on a better show next year if rejuvenated.
Kathy C
Replied: Tuesday 18th of October 2011 06:25 PM